﻿#include"Class.h"
#include<conio.h>
int main() {
	Nguoi *n;
	NguoiViet nv;
	NguoiAnh na;
	n = &nv;
	n->Chao();
	n = &na;
	n->Chao();
	_getch();
		return 0;
}
